Prosecution Insights
Prosecution Insights
Tech Center 1700 • Art Units: 1672 1700 1773 1779
This examiner grants 63% of resolved cases
Hayden R. Brewster is an examiner in Tech Center 1700 and Art Unit 1672. The examiner has 561 resolved cases on record. The data shows an allowance rate of 62.7% for these applications. This 62.7% allowance rate provides a metric for the frequency of successful outcomes. The median days to allowance is 1222, which establishes a timeframe for the duration of the examination process from filing to the final grant.
The profile also includes an interview lift of 46.8%. This lift indicates that conducting an interview with the examiner correlates with a change in the likelihood of success. For practitioners, the 46.8% lift suggests that direct communication is a useful strategy for addressing rejections. With 561 resolved cases, the examiner's history provides a basis for these observations. The 1222-day median to allowance remains a key consideration for managing client expectations and prosecution resources in Art Unit 1672.
| App # | Title | Status | Assignee |
|---|---|---|---|
| 18639787 | SLUDGE TREATMENT APPARATUS AND EXCRETA TREATMENT APPARATUS INCLUDING SAME | Non-Final OA | Samsung Electronics Co., Ltd. |
| 18127027 | ACTIVE MATERIAL SEPARATION APPARATUS | Final Rejection | HONDA MOTOR CO., LTD. |
| 19249727 | USE OF MEDIUM CHAIN PERACIDS FOR BIOFILM INHIBITION IN INDUSTRIAL RECIRCULATING WATER SYSTEMS | Final Rejection | ECOLAB USA INC. |
| 16140100 | USE OF MEDIUM CHAIN PERACIDS FOR BIOFILM INHIBITION IN INDUSTRIAL RECIRCULATING WATER SYSTEMS | Non-Final OA | Ecolab USA Inc. |
| 18570003 | SEPARATION OF HUMAN MILK OLIGOSACCHARIDES FROM A FERMENTATION BROTH | Non-Final OA | DSM IP ASSETS B.V. |
| 18569986 | SEPARATION OF HUMAN MILK OLIGOSACCHARIDES FROM A FERMENTATION BROTH | Non-Final OA | DSM IP ASSETS B.V. |
| 18564612 | TOP COVER ASSEMBLY AND WATER SOFTENING DEVICE | Final Rejection | MIDEA GROUP CO., LTD. |
| 18248885 | WASTEWATER FOAM CONTROL AGENT | Final Rejection | Dow Global Technologies LLC |
| 18005577 | PIEZOELECTRIC AND PIEZOCATALYTIC COMPOSITE MATERIAL, AND METHODS OF USING AND FORMING IT | Non-Final OA | UCL BUSINESS LTD |
| 18794963 | Water Harvesting Systems, And Methods Of Using Thereof | Non-Final OA | Water Harvesting, Inc. |
| 18371584 | CONTROL VALVE FOR CONTROLLING A GAS THROUGH-FLOW | Final Rejection | Binder GmbH |
| 18246301 | PROCESS FOR PREPARING EXTRACELLULAR VESICLES | Final Rejection | Lonza Sales AG |
| 18772583 | MIXING DEVICE | Non-Final OA | WIAB WATER INNOVATION AB |
| 18194697 | Removal of Per- and Polyfluoroalkyl Substances (PFAS) from Water | Final Rejection | CDM Smith Inc. |
| 18662475 | WATER STORAGE SYSTEM | Non-Final OA | DeepRoot Green Infrastructure, LLC |
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